Product Description:

The MSK050B-0300-NN-S2-UP1-RNNN is a synchronous servomotor manufactured by Bosch Rexroth Indramat for the MSK IndraDyn S Synchronous Motors series. In an industrial automation cell, it mounts directly to a gearhead or load shaft and delivers precise rotary motion that follows digitally generated position commands from an IndraDrive controller. By supplying closed-loop torque and velocity, the unit acts as the mechanical output stage in conveyor indexes, pick-and-place gantries, or carton erector spindles where repeatable cycle timing is critical.

The motor releases heat to the environment through natural convection, eliminating forced-air hardware and reducing cabinet complexity. Feedback is handled by an EnDat2.1 optical encoder, and its light-based scanning system provides high signal quality while maintaining an optical sensing gap that is resistant to magnetic dust. Position data are produced at 2048 signal periods per revolution, giving drives fine resolution for small incremental moves. To simplify wiring inside tight machines, the feedback connector is rotatable through 240°, letting the plug face the most convenient cable route. Mechanical scaling parameters are set by the 050 frame size and the 0300 winding code, so the drive uses the nominal electrical constants for this stator.

An electrically released holding brake supplies 6 Nm of static torque so vertical or high-inertia axes stay fixed when power is removed. The feedback head measures one revolution only, using a single-turn design that suits short-stroke motions and eliminates multi-turn memory electronics. Output is transferred through a shaft with a keyway, allowing standard keyed couplings to lock directly onto the rotor. The rotor and housing are manufactured to an increased concentricity tolerance, limiting radial runout for smooth rotation at higher speeds. Length code B balances torque with overall depth, so the motor fits compact frames while still matching the drive current rating.